AT Command Reference Guide for EDGE Wireless ... - wless.ru
AT Command Reference Guide for EDGE Wireless ... - wless.ru
AT Command Reference Guide for EDGE Wireless ... - wless.ru
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Chapter 7 – Call-Related <strong>Command</strong>s<br />
7.7 <strong>AT</strong>DI Mobile Originated Call to ISDN Number<br />
Description:<br />
Exec <strong>Command</strong> Syntax: <strong>AT</strong>DI[;]<br />
Response:<br />
TA attempts to set up an outgoing call to ISDN number. The termination character “;” is<br />
mandatory to set up voice calls or to send *# codes <strong>for</strong> Supplementary Services. It must not be<br />
used <strong>for</strong> data and fax calls.<br />
If no dialtone (parameter <strong>AT</strong>X2 or <strong>AT</strong>X4): NO DIALTONE<br />
If busy (parameter setting <strong>AT</strong>X3 or <strong>AT</strong>X4): BUSY<br />
If connection cannot be set up: NO CARRIER<br />
All other error reasons: +CME ERROR<br />
If successfully connected and non-voice call (TA switches to data state):<br />
CONNECT <br />
When TA returns to command mode after call release: OK<br />
If successfully connected and voice call: OK<br />
Parameter Description:<br />
<br />
ISDN number String with maximum length of 20 characters. Allowed characters: +, 0-9, A, B, C.<br />
Note:<br />
• This command may be aborted generally by receiving a character during execution. Abortion is not possible<br />
during some states of connection setup such as handshaking.<br />
7.8 <strong>AT</strong>DL Redial Last Number Used<br />
Description:<br />
Exec <strong>Command</strong>:<br />
Response:<br />
This command redials the last voice and data call number used in the <strong>AT</strong>D command. If<br />
terminated with semicolon, <strong>AT</strong>DL dials the last voice call number stored in the “LD” phonebook.<br />
Otherwise, the last dialed data or fax number will be used (not contained in the “LD” phonebook).<br />
<strong>AT</strong>DL[;]<br />
If there is no last number or number is not valid: +CME ERROR<br />
If no dialtone (parameter <strong>AT</strong>X2 or <strong>AT</strong>X4): NO DIALTONE<br />
If busy (parameter setting <strong>AT</strong>X3 or <strong>AT</strong>X4): BUSY<br />
If connection cannot be set up: NO CARRIER<br />
If successfully connected and non-voice call (TA switches to online data mode):<br />
CONNECT <br />
When TA returns to command mode after call release: OK<br />
If successfully connected and voice call: OK<br />
Notes:<br />
• This command may be aborted generally by receiving a character during execution. Abortion is not possible<br />
during some states of connection setup such as handshaking.<br />
• Parameter “I” and “i” only if no *#-code is within the dial string.<br />
7.9 <strong>AT</strong>H Disconnect Existing Connection<br />
Description:<br />
Disconnect existing call from command line by local TE and terminate call.<br />
Exec <strong>Command</strong> Syntax: <strong>AT</strong>H[]<br />
Response:<br />
OK<br />
Parameter Description:<br />
<br />
0 disconnect from line and terminate call<br />
Notes:<br />
• OK is issued after circuit 109 (DCD) is turned off, if it was previously on.<br />
• <strong>AT</strong>H terminates every circuit switched call (voice, data or fax), even if it is issued via another interface. This<br />
behavior is in accordance with ITU-T V.250; (07/97, “Hook control”: “<strong>AT</strong>H is terminating any call in progress.”).<br />
• <strong>AT</strong>H clears any active PDP context or terminates any existing PPP connection, but only if issued on the same<br />
interface where GPRS is used and if there is no pending network request <strong>for</strong> PDP context activation. It does not<br />
affect PDP contexts and PPP connections on other interfaces (see also Chapter “<strong>AT</strong>H Manual rejection of a<br />
network request <strong>for</strong> PDP context activation”).<br />
Multi-Tech Systems, Inc. <strong>AT</strong> <strong>Command</strong>s <strong>for</strong> <strong>EDGE</strong> Modems (S000371B) 79